Design a combinational circuit with three inputs and one output.
The output is 1 when binary value of the inputs is less than or equal to 3. The output is 0 otherwise. (10)
Design the sequential circuit whose state table is given below using a 2-bit register and combinational gates.
| Present State | Input | Next State | ||
| A | B | x | A | B |
| 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 | 1 |
| 0 | 1 | 0 | 1 | 0 |
| 0 | 1 | 1 | 0 | 1 |
| 1 | 0 | 0 | 1 | 0 |
| 1 | 0 | 1 | 1 | 1 |
| 1 | 1 | 0 | 1 | 0 |
| 1 | 1 | 1 | 0 | 1 |
Implement F = Σ(1, 3, 4, 5, 7) using
a) Multiplexer
b) PLA (4+6)
Attempt any Eight questions
[8×5=40]Perform the following conversion
a) (A57)₁₆ to binary
b) (110001)₂ to octal (2.5+2.5)
Differentiate between BCD and Gray code. Convert (10)₁₀ to BCD. (3+2)
Simplify the Boolean Function products of sum using the don't-care conditions d
F = w'(x'y + x'y' + xyz) + x'z'(y + w)
d = w'x(y'z + yz') + wyz (5)
What is decoder circuit? Design 3 to 8 decoder circuit. (5)
Explain the concept of bidirectional shift register with parallel load. (5)
Express the Boolean Function F = AB' + BC in a sum of min terms. (5)
Describe the working mechanism of edge triggered flip flop? What are its advantages? (3+2)
Write short notes on
a) Latch
b) Memory (2.5+2.5)